EP2245337B1 - Ensemble engrenage à régulation de vitesse continue bidirectionnelle et procédé permettant de modifier le sens de rotation - Google Patents

Ensemble engrenage à régulation de vitesse continue bidirectionnelle et procédé permettant de modifier le sens de rotation Download PDF

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Publication number
EP2245337B1
EP2245337B1 EP09702565.4A EP09702565A EP2245337B1 EP 2245337 B1 EP2245337 B1 EP 2245337B1 EP 09702565 A EP09702565 A EP 09702565A EP 2245337 B1 EP2245337 B1 EP 2245337B1
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EP
European Patent Office
Prior art keywords
rotation
axis
eccentric
primary shaft
shaft
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Active
Application number
EP09702565.4A
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German (de)
English (en)
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EP2245337A1 (fr
Inventor
Lubomir Dvorak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dvorak Svahove Sekacky sro
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Dvorak Svahove Sekacky sro
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/76—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable

Definitions

  • the present invention relates to a gear assembly.
  • the gear assembly is adapted for the bidirectional continuous rotating speed regulation that is applicable in the unlimited scope in every case, when the continuous regulation of the input rotating speed or power input of driven unit is needed and when the simultaneous regulation of the output rotating speed or power output of driving unit is needed.
  • the generic Document DE 103 28 137 A1 discloses a continuous gear assembly having two geared transmission components.
  • One of said transmission components is rotatable around its axis.
  • the other transmission component is substantially fixed. Both the transmission components are in the permanent geared engagement.
  • the second component exercises the compulsory motion around the central axis.
  • the distance of the first component's axis from the central axis is adjustable, and consequently the distance of the second component's axis from the central axis is also adjustable.
  • the present invention can fully replace and substantially simplify the procedure of comfortable control of rotating speed in comparison with a known hydraulic system.
  • the purpose of the present invention is to provide an apparatus, in which the above mentioned problems of the prior art are eliminated.
  • an eccentric for changing a position of axis of rotation of eccentric in the upwards and downwards directions and with respect to axis of rotation of primary shaft.
  • An outer guide of the output segment is arranged on the gearbox, wherein a device for control of eccentric is arranged on the primary shaft.
  • the device for control of eccentric is adapted to change the position of axis of rotation of eccentric in the upwards and downwards directions with respect to the axis of rotation of primary shaft.
  • the device for control of eccentric can be controllable mechanically, pneumatically, hydraulically or electromagnetically.
  • the outer guide of output segment is advantageously arranged for immediate anchorage of the output segment in point depending on the position of eccentric and for providing rotation of the output segment around the axis of rotation of eccentric.
  • the coupling member is advantageously adapted for transmission of rotational movement of the output segment around axis of rotation of eccentric on the secondary shaft.
  • the bigger deflection of axis of rotation of eccentric is, the bigger is the rotational speed of secondary shaft transmitted from primary shaft.
  • the direction of rotation of secondary shaft is identical with direction of rotation of the primary shaft.
  • the eccentric is adapted for shifting of axis of rotation of eccentric in both directions and in relation to axis of rotation of primary shaft, i.e. above and under said axis.
  • the output segment At deflection of axis of rotation of eccentric in direction above said axis of rotation of primary shaft, the output segment carries out a rotational movement in one direction of rotation of the output segment, wherein at deflection of axis of rotation of eccentric in direction under said axis of rotation of primary shaft, the output segment carries out a rotational movement in the reverse direction.
  • the coupling member that transmits rotational movement of the output segment connects this output segment to the secondary shaft.
  • the rotating speed of the output segment, and therefore the rotating speed of the secondary shaft is the bigger, the bigger is deflection of axis of rotation of eccentric in direction of displacement of axis of eccentric above the axis of rotation of the primary shaft or direction of displacement of axis of eccentric below the axis of rotation of the primary shaft from axis of rotation of primary shaft.
  • the outer guide of output segment provides change of point of anchorage of output segment depending on rotational movement of the output segment.
  • the output segment is entrained in direction of rotation of the output segment, when by means of change of axis of rotation of eccentric in direction of displacement of axis of eccentric above the axis of rotation of the primary shaft or in direction of displacement of axis of eccentric below the axis of rotation of the primary shaft in relation to position of axis of rotation of primary shaft and at simultaneous immediate anchorage of output segment in point of anchorage in outer guide, when output segment is rotationally arranged on eccentric, there is provided rotational movement of axis of rotation of eccentric in direction of rotation of eccentric, and therefore rotational movement of primary shaft in direction of rotation of the primary shaft, wherein the primary shaft is entrained by the eccentric.
  • the eccentric is adapted for shifting of axis of rotation of eccentric in both directions in relation to axis of rotation of primary shaft, i.e. above and under said axis.
  • the primary shaft At deflection of axis of rotation of eccentric in direction above the axis of rotation of primary shaft, the primary shaft carries out a rotational movement in one direction of rotation of the primary shaft, wherein at deflection of axis of rotation of eccentric in direction under the axis of rotation of primary shaft, the primary shaft carries out a rotational movement in the reverse direction.
  • the coupling member connects output segment that transmits rotational movement of the secondary shaft to the output segment.
  • the rotating speed of axis of rotation of eccentric is the bigger, the bigger is deflection of axis of rotation of eccentric in direction of displacement of axis of eccentric above the axis of rotation of the primary shaft or in direction of displacement of axis of eccentric below the axis of rotation of the primary shaft from axis of rotation of primary shaft.
  • the outer guide of output segment provides change of point of anchorage of output segment depending on rotational movement of the output segment.
  • the present invention relates to a new type of the gear assembly 1 as schematically shown in Figures 1a, 1b and Figures 2a through 2f where speed control from primary shaft 2 to secondary shaft 6 is realized by means of eccentric 3 allowing continuous speed variation from zero to maximum in both directions of rotation.
  • the gear assembly 1 also allows driving the secondary shaft 6 and controlling the speed of the primary shaft 2 so that the gear assembly can be used bidirectionally.
  • the gear assembly 1 comprises a gearbox 7 provided with the primary shaft 2 and the secondary shaft 6 .
  • the eccentric 3 On the primary shaft 2 there is arranged the eccentric 3 for changing a position of axis 11 of rotation of the eccentric 3 in the upwards and downwards directions and with respect to axis 10 of rotation of the primary shaft 2 .
  • An outer guide 8 of the output segment 4 is arranged on the gearbox 7 .
  • a device 9 for control of eccentric 3 is arranged on the primary shaft 2 .
  • the device 9 is adapted to change the position of axis 11 of rotation of eccentric 3 in the upwards and downwards directions with respect to the axis 10 of rotation of primary shaft 2 .
  • the present gearbox is destined for utilizing in mechanisms, two-wheeled or multi wheeled vehicles, municipal machines, for example for traveling of different kinds of mowers, allowing continuous regulation of power output transmission from driving aggregate to the traveling device.
  • Principle of reversing the direction of rotation consists in that the primary shaft 2 is not firmly or by means of gears coupled with the output, i.e. secondary shaft 6 , but the primary shaft 2 is coupled with the eccentric 3 that is deflected from axis 10 of rotation of the primary shaft 2 in both directions.
  • eccentric 3 shaft On the eccentric 3 shaft there is rotationally arranged an output segment 4 that rotates depending on deflection of the eccentric 3 from axis 10 of rotation of the primary shaft 2 .
  • the movement of the output segment 4 is transmitted by means of the coupling member 5 , for example an articulated shaft, to the secondary shaft 6 of the gear assembly 1 .
  • Output segment 4 is freely arranged on the eccentric 3 , it means that if axis 11 of rotation of eccentric 3 coincides with axis 10 of rotation of primary shaft 2 , then the output segment 4 does not rotate, no movement is transmitted to the secondary shaft 6 , and this secondary shaft 6 is standing.
  • the output segment 4 begins to rotate and axis of rotation of the output segment 4 , or more precisely axis 11 of rotation of eccentric 3 , begins to describe circles around the axis 10 of rotation of the primary shaft 2 .
  • Diameter of these circles is the bigger, the bigger is deflection of axis 11 of rotation of eccentric 3 to the axis 10 of rotation of primary shaft 2 .
  • Rotational movement of the output segment 4 is then transmitted by means of coupling member 5 , for example articulated shaft or another suitable mechanical, electromagnetic, pneumatic or hydraulic link, to the secondary shaft 6 .
  • coupling member 5 for example articulated shaft or another suitable mechanical, electromagnetic, pneumatic or hydraulic link
  • Outer segment 4 from which the rotational speed is transmitted to the gearbox output, rotates in a suitable outer guide 8 of the output segment 4 allowing the above mentioned movement.
  • Output segment 4 can comprise, for example, a gear rotationally arranged in suitable outer guide 8 realized e.g. as a flexible lamellar guide allowing to anchor the output segment 4 according to deflection of axis 11 of rotation of eccentric 3 from the axis 10 of rotation of the primary shaft 2 .
  • suitable outer guide 8 realized e.g. as a flexible lamellar guide allowing to anchor the output segment 4 according to deflection of axis 11 of rotation of eccentric 3 from the axis 10 of rotation of the primary shaft 2 .
  • Thrust of lamellar outer guide 8 onto the output segment 4 can be provided, for example, mechanically, pneumatically, hydraulically, electromagnetically, etc.
  • Deflection of the eccentric 3 to the axis 10 of rotation of the primary shaft 2 can be provided by means of suitable device 9 controlled, for example, mechanically, pneumatically, hydraulically, electromagnetically, etc.
  • Transmission of the output segment 4 movement to the secondary shaft 6 of the gearbox can be realized by means of the coupling member with any suitable link, for example, mechanically, pneumatically, hydraulically, electromagnetically, etc.
  • the present gear assembly 1 allows to change direction of rotation of the secondary shaft 6 , as well as to continuously regulate the rotational speed of the secondary shaft 6 in both directions of rotation, and to attain the complete stoppage of rotation of the secondary shaft 6 of the gear assembly 1 .
  • the driving primary shaft 2 rotates around its axis 10 of rotation always in one direction, i.e., for example, in the clockwise direction.
  • Secondary shaft 6 of the gearbox is rotated in one direction - in the clockwise direction
  • eccentric 3 In case when the eccentric 3 , or more precisely the axis 11 of rotation of eccentric 3 , is deflected in one direction at first above the axis 10 of rotation of primary shaft 2 , then the shape of eccentric 3 allows anchorage in point 12 of the upper part of the output segment 4 in the flexible bearing of the outer guide 8 .
  • the axis 11 of rotation of eccentric 3 begins describe circles around the axis 10 of rotation of primary shaft 2 , and the output segment 4 that is rotationally arranged on the eccentric 3 shaft, rotates in one direction, wherein this rotation is transmitted to the secondary shaft 6 of the gearbox by means of the coupling member 5 .
  • This principle is shown in Figure 2a .
  • Rotation of the output segment 4 is the bigger, the bigger is deflection of axis 11 of rotation of eccentric 3 from axis 10 of rotation of primary shaft 2 .
  • Secondary shaft 6 of the gearbox is rotated in reversal direction - in the anticlockwise direction
  • Change of direction of rotation of the output segment 4 and simultaneously of the secondary shaft 6 of the gearbox can be achieved by resetting of eccentric 3 or axis 11 of rotation of eccentric 3 in the reverse direction, i.e. in this case under the axis 10 of rotation of primary shaft 2 .
  • eccentric 3 allows anchorage in point 12 of the upper part of the outer segment 4 in resilient seating of the outer guide 8 .
  • the axis 11 of rotation of eccentric 3 begins describe circles around axis 10 of rotation of the primary shaft 2 , and the output segment 4 that is rotationally arranged on the eccentric 3 shaft, rotates in reversal direction than in the above case, wherein this rotation is transmitted to the secondary shaft 6 of the gearbox by means of the coupling member 5 .
  • This principle is shown in Figure 2b .
  • Rotation of the output segment 4 is the bigger, the bigger is deflection of axis 11 of rotation of eccentric 3 from axis 10 of rotation of primary shaft 2 .
  • Secondary shaft 6 of the gearbox is standing - neutral position
  • Gear assembly according to the present invention can be advantageously applied also as replacement of differential, used e.g. in mutli-wheeled vehicles or mechanisms for driving travelling wheels, as schematically shown in Figure 6 .
  • Driving unit 13 is by means of transmission members 15 and primary shaft 2 connected with travelling units consisting of gear assembly 1 and travelling wheel 16 .
  • Power output or rotating speed transmitted from the driving unit 13 to the travelling wheels can be regulated by means of control unit 14 connected with the device 9 for control of eccentric 3 by means of link 17 , being for example, electric, electromagnetic, pneumatic, hydraulic, mechanical, etc.
  • the rotating speed of the travelling wheels 16 can be controlled by means of the control unit 14 so that each wheel can be controlled independently, all the wheels can be controlled together, or one or more travelling wheels can be controlled in dependence of rotating speed of another travelling wheel or wheels.
  • the number of control units can be any amount.
  • FIG. 7 Another example of utilizing the present invention is schematically shown in Figure 7 .
  • Travelling device 18 comprises gear assembly 1 .
  • Secondary shaft 6 is provided with a flywheel 20 , and primary shaft 2 is connected by means of transmission members 15 with travelling wheel 16 that is driven by driving unit 13 , connected therewith by means of transmission members 15 and coupling device 19 .
  • travelling device 18 comprises control unit 14 connected by link 17 with the device 9 for control of eccentric 3 , and also connected by link 21 with the coupling device 19 .
  • Links 17 and 21 can be mechanic, electric, electromagnetic, pneumatic, hydraulic or combination thereof.
  • Travelling device can be arranged on any type of chassis of the vehicle or mechanism that can comprise any amount of these travelling devices.
  • the present gear assembly 1 allows the transmission of rotating speed or power output also in the reverse direction, i.e. from the secondary side to the primary side.
  • the rotating speed of the primary shaft 2 can be regulated.
  • This characteristic can be used for recuperation or recovery of the kinetic energy during braking (or deceleration) and driving the mechanisms.
  • Travelling device 18 allows by means of the gear assembly 1 to provide continuous change of rotating speed of the flywheel 20 .
  • the kinetic energy transmitted from the travelling wheel 16 can be simultaneously accumulated in the flywheel 20 so that the controlled braking of the travelling wheel 16 can be achieved.
  • Gear assembly 1 also allows transmission and continuous regulation of rotating speed of the flywheel 20 towards to the traveling wheel 16.
  • control unit 14 and links 17 and 21 it is possible to control the rotating speed of the flywheel 20 or primary shaft 2 in combination with the driving unit 13 and the coupling device 19 .
  • the combined driving or braking of the travelling wheel 16 can be controlled.
  • the gear assembly according to the present invention is applicable in the unlimited scope in every case, when the continuous regulation of the input rotating speed or power input of driven unit is needed and when the simultaneous regulation of the output rotating speed or power output of driving unit is needed.
  • the gear assembly according to the present invention is applicable everywhere, when the rotating speed or power output, transmitted from the driving unit to the driven unit, is to be regulated or controlled.
  • the present invention is applicable in automobile industry, municipal technology, construction industry, mechanical engineering, etc.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Transmission Devices (AREA)

Claims (3)

  1. Mécanisme de transmission (1) comportant une boîte de vitesse (7) équipée par un arbre primaire (2) et un arbre secondaire (6), ledit arbre primare (2) étant muni d'un excentrique (3) sur lequel un segment de sortie (4) est monté en rotation, ledit segment de sortie étant assemblé par une pièce de raccordement (5) avec ledit arbre secondaire (6), un guidage extérieur (8) du segment de sortie (4) agencé sur ladite boîte de tranmission (7) et un dispositif (9) de commande d'excentrique (3) arrangé sur ledit arbre primaire (2), ledit dispositif étant adapté pour changement de position d'axe de rotation (11) d'excentrique (3) en direction vers le haut et vers le bas envers une axe de rotation (10) dudit arbre primaire (2), caractérisé en ce que ledit quidage extérieur (8) est formé par un guidage souple lamellé.
  2. Mécanisme de transmission (1) selon revendication 1, caractérisé en ce que le dispositif (9) peut être commandé par voie mécanique, pneumatique, hydraulique ou electromagnétique.
  3. Mécanisme de transmission (1) selon revendications 1 et 2, caractérisé en ce que ladite pièce de raccordement (5) est adaptée pour transmission du mouvement rotatif dudit segment de sortie (4) autour de ladite axe (11) de rotation d'excentrique (3) sur ledit arbre secondaire (6).
EP09702565.4A 2008-01-15 2009-01-13 Ensemble engrenage à régulation de vitesse continue bidirectionnelle et procédé permettant de modifier le sens de rotation Active EP2245337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20080020A CZ200820A3 (cs) 2008-01-15 2008-01-15 Prevodové ústrojí s obousmernou plynulou regulací otácek a zpusob zmeny smeru rotace
PCT/CZ2009/000002 WO2009089803A1 (fr) 2008-01-15 2009-01-13 Ensemble engrenage à régulation de vitesse continue bidirectionnelle et procédé permettant de modifier le sens de rotation

Publications (2)

Publication Number Publication Date
EP2245337A1 EP2245337A1 (fr) 2010-11-03
EP2245337B1 true EP2245337B1 (fr) 2013-07-10

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EP09702565.4A Active EP2245337B1 (fr) 2008-01-15 2009-01-13 Ensemble engrenage à régulation de vitesse continue bidirectionnelle et procédé permettant de modifier le sens de rotation

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EP (1) EP2245337B1 (fr)
CZ (1) CZ200820A3 (fr)
WO (1) WO2009089803A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012122680A1 (fr) * 2011-03-17 2012-09-20 Li Mingsheng Transmission à variation continue automatique à différentiel du type à rétroaction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2435652A1 (de) * 1973-07-24 1975-02-13 Sigmund Dipl Ing Hutter Stufenlos regelbares planetengetriebe
US5273497A (en) * 1992-10-16 1993-12-28 Wallace Associated Research Mechanical transmission with infinite-ratio gearing
DE10328137A1 (de) * 2003-06-23 2005-01-20 Peter Kobler Stufenloses Getriebe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2435652A1 (de) * 1973-07-24 1975-02-13 Sigmund Dipl Ing Hutter Stufenlos regelbares planetengetriebe
US5273497A (en) * 1992-10-16 1993-12-28 Wallace Associated Research Mechanical transmission with infinite-ratio gearing
DE10328137A1 (de) * 2003-06-23 2005-01-20 Peter Kobler Stufenloses Getriebe

Also Published As

Publication number Publication date
WO2009089803A1 (fr) 2009-07-23
EP2245337A1 (fr) 2010-11-03
CZ200820A3 (cs) 2009-07-29

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